Upper bounds on sparticle masses from muon g-2 and the Higgs mass and the complementarity of future colliders

TL;DR

This paper derives upper bounds on supersymmetric particle masses based on muon g-2 and Higgs measurements, highlighting how future colliders could discover SUSY if it explains the muon g-2 anomaly.

Contribution

It provides a comprehensive analysis of upper bounds on sparticle masses from current experimental data and discusses the potential of future colliders to discover SUSY.

Findings

Current LHC limits imply stop masses up to about 10 TeV.

Muon g-2 anomaly constrains chargino and smuon masses.

Future colliders could discover SUSY if it explains muon g-2.

Abstract

Supersymmetric (SUSY) explanation of the discrepancy between the measurement of $(g-2)_\mu$ and its SM prediction puts strong upper bounds on the chargino and smuon masses. At the same time, lower experimental limits on the chargino and smuon masses, combined with the Higgs mass measurement, lead to an upper bound on the stop masses. The current LHC limits on the chargino and smuon masses (for not too compressed spectrum) set the upper bound on the stop masses of about 10 TeV. The discovery potential of the future lepton and hadron colliders should lead to the discovery of SUSY if it is responsible for the explanation of the $(g-2)_\mu$ anomaly. This conclusion follows from the fact that the upper bound on the stop masses decreases with the increase of the lower experimental limit on the chargino and smuon masses.